TCU starting quarterback Casey Pachall is expected to miss the next eight weeks with a broken left arm, Stefan Stevenson of the Fort Worth Star-Telegram reports.

Pachall had surgery to repair the forearm fracture in his non-throwing arm shortly after suffering the injury in Saturday's blowout win over Southeastern Louisiana. The eight-week timetable would keep Pachall sidelined for TCU's next six games through early November.

According to a source per Stevenson, the Horned Frogs' Nov. 9 matchup at Iowa State could be the soonest TCU fans see Pachall back in action. The bad news for Gary Patterson's squad is that they will play at No. 14 Oklahoma and at No. 12 Oklahoma State in the coming weeks.

A 6'5", 230-pound senior from Brownwood, Texas, Pachall was a 3-star prospect coming out of high school and rated as the 18th-best pro-style quarterback in the Class of 2009, according to 247Sports.com.

Pachall shared time under center with sophomore signal-caller Trevone Boykin in TCU's season-opening loss to LSU, completing nine of 16 passes for 75 yards and an interception. He would run the ball twice for 16 yards but finished with a quarterback rating of 45.2.

Pachall hasn't played an entire season since his sophomore year in 2011. He appeared in TCU's first four games in 2012 but was suspended indefinitely in early October following a DWI arrest.

In 2011, Pachall led the Horned Frogs to an impressive 11-2 mark, completing 66.5 percent of his passes for 2,921 yards, 25 touchdowns and seven interceptions. He would also rush for two scores that year.